git 1.7.9.4 doesn't include custom autoconf macros so configure can't be rebuilt

[GoogleCodeExporter]

What steps will reproduce the problem?
1. attempt to rebuild configure via autoconf
2. run configure
3.

What is the expected output? What do you see instead?

I expect that configure runs without errors, but instead it outputs an error 
because it has no idea what TYPE_SOCKLEN_T represents, because there was no 
macro for it.


What version of the product are you using? On what operating system?

git 1.7.9.4 on x86_64-sun-solaris2.10

Please provide any additional information below.

git 1.7.9.4 uses TYPE_SOCKLEN_T in configure.ac, but it doesn't include the 
source for it anywhere, so if you need to rebuild the configure script from 
sources (such as if you fixed some other configure issue) you get an error:

configure: CHECKS for typedefs, structures, and compiler characteristics
./configure: line 5258: TYPE_SOCKLEN_T: command not found

Original issue reported on code.google.com by Timothy....@gmail.com on 22 Mar 2012 at 11:03